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ruby-on-rails,ruby,ruby-on-rails-4,model-view-controller
I have a navigation bar included in application.html.erb. Because for some pages, such as the signup page, I need to place additional code inside the navigation bar, I have excluded those pages for showing the navigation bar through application.html.erb and instead included it in their respective view pages. See code...

ruby-on-rails,ruby,heroku
My app is working fine locally and my push to Heroku was successful. But, when I run heroku run rake db:migrate, I get the following error: NameError: uninitialized constant AddWeightToExercises Here is the failed migration: class AddWeightToExercise < ActiveRecord::Migration def change add_column :exercises, :weight, :float end end edit: Thanks for...

ruby-on-rails,ruby-on-rails-4,mongoid,embedded-documents
I'm trying to create a Mongoid N-N reference association between two embedded documents in Rails 4 however I'm finding it difficult to get my head round how this is done. I started by adding the HABTM association to the relevant models below (Track and Option) but of course I'm getting...

ruby-on-rails,activerecord
I have two Models User and Site. The User has category like 'basic and premium'. The user has relation to sites one -> many (i.e one user can have more than one sites). Now i want to select sites of premium user. Can someone tell me how to use where...

ruby-on-rails,ruby,ruby-on-rails-4,ruby-on-rails-3.2
I am new to rails 4. I have gone through lots of tutorials and trying to solve below scenario. But still no success. Can anybody point me in the right direction. How to handle associations for below scenario. Scenario: 1. Patient can have many surgeries. 2. Surgery has two types...

ruby-on-rails,crud
I am learning to use CRUD, and setup a page to add a record, however it only generated blank record? Can you take a look my code? thanks! here is the Page controller: class PagesController < ApplicationController def index @test = Page.all end def new @test = Page.new end def...

ruby-on-rails
I want to show image in each loop and image is upload by paperclip gem. The real path is /system/users/images/000/000/035/original/lovecupcake.jpg When i use this this is working fine rails code <%= image_tag @user.image.url(:medium) %> output <img alt="Lovecupcake" src="/system/users/images/000/000/035/original/lovecupcake.jpg"> it show me image but when i apply loop <% @result.each do...

ruby-on-rails,ruby,authentication
I am building a small API that uses basic authentication. What I have done, is that a user can generate a username and password, that could be used to authenticate to the API. However I have discovered that it is not working 100% as intended. It appears that a request...

ruby-on-rails,integration-testing
After following Michael Hartl's Rails Tutorial I moved the 'micropost feed' from / to /members, and now when I submit a post that doesn't validate properly (too many characters, missing content etc.) rails returns an error saying: ArgumentError in MicropostsController#create First argument in form cannot contain nil or be empty...

javascript,jquery,ruby-on-rails
I have couple javascript functions that attaching action to buttons in controller view some/index. I navigate to some/index using link_to method. But when i'm using link_to method, buttons has no attached javascript actions (in some/index view). When i try open some/index directly from my browser, buttons have all attached actions...

ruby-on-rails,ruby
I have the following line of code : if params[:"available_#{district.id}"] == 'true' @deliverycharge = @product.deliverycharges.create!(districtrate_id: district.id) delivery_custom_price(district) end Rubocop highlight it and asks me to use a guard clause for it. How can I do it? EDIT : Rubocop highlighted the first line and gave this message Use a guard...

ruby-on-rails,arrays,ruby,multidimensional-array
seating_arrangement [ [:first, :second, :none], [:first, :none, :second], [:second, :second, :first], ] I need to copy this array into new array. I tried to do it by following code: class Simulator @@current_state def initialize(seating_arrangement) @@current_state = seating_arrangement.dup end But whenever I am making any changes to seating_arrangement current_state changes automatically....

ruby-on-rails,ruby,ruby-on-rails-3,memory,heroku
I have a massive function i have been calling manually through the heroku rails console. I have been receiving the error rapid fire in my logs: 2015-06-22T14:56:42.940517+00:00 heroku[run.9877]: Process running mem=575M(112.4%) 2015-06-22T14:56:42.940517+00:00 heroku[run.9877]: Error R14 (Memory quota exceeded) A 1X dyno is suppose to have 512 MB of RAM. I...

ruby-on-rails,ruby-on-rails-4
I'm trying to do something that I imagine to be very basic, but I'm very new to Rails and am not sure what sure what I'm doing wrong. I've gone through several tutorials and searched for an answer and can't find what the issue is. Would appreciate any help! I've...

java,osx,deployment
On Macs, there's a default menu at the top for basic application handling functions: I've made an application using Java for my Grade 10 final project, (and I'm quite convinced that it's better than Microsoft Paint) and I decided to package it. Using Eclipse, I exported it as a Mac...

ruby-on-rails,ruby,enums
I need to do something like this: class PlanetEdge < ActiveRecord::Base enum :first_planet [ :earth, :mars, :jupiter] enum :second_planet [ :earth, :mars, :jupiter] end Where my table is a table of edges but each vertex is an integer. However, it seems the abvove is not possible in rails. What might...

ruby-on-rails,ruby,validation,ruby-on-rails-4,associations
An Organization model has a 1:many association with a User model. I have the following validation in my User model file: belongs_to :organization validates_presence_of :organization_id, :unless => 'usertype==1' If usertype is 1, it means the user will have no organization associated to it. For a different usertype the presence of...

ruby-on-rails,ruby,ruby-on-rails-4
I am having trouble building a controller concern. I would like the concern to extend the classes available actions. Given I have the controller 'SamplesController' class SamplesController < ApplicationController include Searchable perform_search_on(Sample, handle: [ClothingType, Company, Collection, Color]) end I include the module 'Searchable' module Searchable extend ActiveSupport::Concern module ClassMethods def...

ruby-on-rails,postgresql,activerecord,error-handling
I have the next code to save: Transaction.create(:status => params[:st], :transaction_id => params[:tx], :purchased_at => Time.now).save! But how can I redirect to main root page if this ActiveRecord::RecordNotUnique error appears? Can I catch this error?...

ruby-on-rails,arrays
I have to pass a array of food_item_ids in my order_controller. Every order will have many food_items. How can I pass these food_items_id as an array in strong parameters. orders_controller.rb def create @order = Order.new(order_params) if @order.save render :json, @order, status:201, location: [:api, @order] else render :json, { errors: @order.errors...

ruby-on-rails
i am trying to access the data from a form. <% form_tag(:action => "test") do %> <p> Name: <%= text_field_tag("name","web programmer") %> </p> <%= submit_tag ("Save data") %> <% end %> this form is in views/challenges/show.html I have written this piece of code in challenges_controller def test @name = params[:name]...

jquery,ruby-on-rails,search,if-statement
I have a blog site and recently added a search bar for visitors to browse through blog posts. When used, all of the posts go away in the directory and only those which return via the search appear. In order to show the general directory and view all, I would...

ruby-on-rails,ruby-on-rails-4,model-view-controller
I have two partial views for two different sign up forms. On my home page , based on the link one clicks on, I'm rendering respective form.(views/application/index) = link_to 'Mentor', new_user_path(user_role: true), :class =>'btn' = link_to 'Mentee', new_user_path, :class =>'btn' In views/users/new.html.haml , I'm checking the user role and redirecting...

ruby-on-rails,routes
Weird Error. I have some routes that work perfectly during development but once i deploy and try to access them it comes up with page does not Exist error I have the following routes.rb file: TransportUnl::Application.routes.draw do resources :trucks resources :shipments do collection do get :autocomplete_location_cs end end devise_for :users...

ruby-on-rails,railstutorial.org,minitest,guard
I'm currently following the book and the video and in the video, Hartl runs a guardfile so that it automatically runs tests after any changes have been made. So in the videos when he presses return whilst in guard mode, it says: 17:35:31 - INFO - Running: test/controllers/static_pages_controller_test.rb followed by...

ruby-on-rails
I'm setting up permissions for each user to determine what access they have to certain data. I have a user model and a permission model that is set up with a has_many and belongs_to association like so: app/models/permission.rb class Permission < ActiveRecord::Base has_many :users end app/models/user.rb class User < ActiveRecord::Base...

jquery,ruby-on-rails,ajax
All I'm trying to do is have a collection populate in the view when a user clicks a button. But I feel like I'm making this way too complicated and it's not working. See my code - where am I going wrong? Click handler: $('#filterrific_results').find('.followup-injury').on('click', function(e){ e.preventDefault(); $.ajax({ url: "/assessments/followups",...

ruby-on-rails,ruby,rest,activerecord,one-to-many
I'm creating a rails application that is a backend for a mobile application. The backend is implemented with a RESTful web API. Currently I am trying to add gamification to the platform through the use of badges that can be earned by the user. Right now the badges are tied...

ruby-on-rails,forms
In my app, I have a range_field where a user can select 0..100. But if they don't select anything, I want the form to submit "null" or nil as the value rather than a numerical value. Is this possible? If I use the below syntax, then everything works except value...

ruby-on-rails,ruby,ruby-on-rails-4,twitter
I have a model named Tweet. The columns of the Tweet model are: -id -content -user_id -picture -group -original_tweet_id Every tweet can have one or multiple retweets. The relation happens with the help of original_tweet_id. All the tweets have original_tweet_id nil , whilst the retweets contain the id of the...

ruby-on-rails,unit-testing,testing,rspec,rspec-rails
I have a page dashboard.html.erb that may be redirected to from several different controllers/actions. When it receives the redirect, it also receives several url parameters. Controller code: class PlansController def some_action redirect_to dashboard_path(show: "default", cool_array: ["test", "test"]) end end class StaticpagesController def dashboard end end View code: <% if cool_array...

ruby-on-rails,ruby
I am trying to populate a dropdown box on a view that has all the states. This works just fine: <%= f.collection_select :state_id, @states, :id, :name %> Now, I need to make the following: Some states are going to be disabled for choosing, but they still have to appear on...

ruby-on-rails,ruby,ruby-1.9.3
This is something that I had working in ruby 1.8.7, but no longer works in 1.9.3, and I am not sure what changes make this fail. Previously, I had something like this myFunction(submitArgs()) where submitArgs was a helper method that could be called with some options def submitArgs(args={}) #Some logic/manipulations...

mysql,ruby-on-rails,rdbms
I see add_index ~ unique: true statement in schema.rband think uniqueness is constraint for table, not for index.Using index is one of way realizing uniqueness, Programmer should not designate to the RDBMS "how" and index quicken searching but take costs inserting. In fact, is there another way to keep uniqueness...

ruby-on-rails,json,sorting
I'm very new to Ruby on rails. I try to edit the following api. I want to sorting "can_go" which is true are shown at the top of list. I added this row before sending data, but the result is still order by "user_id". user_infos.sort { |a, b| - (a['can_go']<=>b['can_go'])...